Dining-car refrigerator installation



Aug. 26, 1924.

v w. WISHART ET AL DINING 0 m REFRIGERATOR INSTALLATION File'd Auz. 8.1921 4 Sheets-cheat 1 Aug. 26, 1924.

w. WISHART ET AL DINING CAR REFRIGERATOR INSTALLATION 4 Sheets-Sheet 2Filed M22. 8. 1921 flZ era H/Vbrreii 1: I} I my.

Aug. 26, I924. 1,506,103

V w. WISHART ET AL DINING CAR REFRIGERATOR INSTALLATION Filed Au 8. 19214 Sheets-Sheet Aug. 26, 1924. 1,506,103

W. WISHART ET AL V DINING CAR REFRIGERATOR INSTALLATION Filed Aul. 8,1921 4 Sheets-Sheet. 4

Y A Am' I Patented Aug. 26, 1924 UNITED STATES P'A TE-NT OFFICE.

WILLIAM-WISHABT AND-ALBEarH: MORRELL; or oLI 'roN, IOWA, ASSIGNORS, BYMESNE ASSIGNMENTS, TO CLIMAX ENGINEERING COMPANY, or CLINTON, IOWA,

A QORPORATION OF DELAWARE.

DINING-GAR REFRIGERATOR INSTALLATION.

Application filed August'8, 1921. Serial No. 490,781.

I To all whom it may concern:

Be it-known that we, WILLIAM WISHART and ALBERT H.- MoRnELL, citizens ofthe United States, and residentsof the cit of Clinton, in the county ofClinton and tateof Iowa, have invented certain new and usefulImprovements in a Dining-Car Refrigerf ator Installation; and we dohereby declare with'a refrigerator-high side and low side for thepurpose of cooling brine-which not only cools the main refrigerator boxbut also circulates through a pipe system connecting a plurality ofsubsidiary refriger v ator. boxes with the brine chamber of saidmain-box to permitall of the refrigerator boxes to be brine cooled. 7

It is an object of this invention to provide a coolingsystem' forcooling all of the refrigerator boxes of a dining car from one source.

It is also an object ofthe invention to install a combination hi h andlow side refrigerating unit in a dining car to maintain acirculatingcooling medium at a low temperature for the purpose ofcooling all of the dining car refrigerator boxes.

Another object of the invention is to connect all of the variousrefrigerator boxes of a dinin car by a piping system with a tank the cooing-medium 'of which is cooled by. a' refrigerant expansion coilconnected with "a higl'1' SidQ' refrigerator unit. 4

A further object of this invention is to circulate acoolin'g mediumthrough a pipmg system" which connects all of the refrigerator boxes ofa dining car with a tank frigerant expansion coil for cooling said;

' me'ium: f

vention to equip the main refrigerator-box side unit Having pi sconnected with an ex-,. pan'sionj-coil whlc projects into. a brine"chamber to cool thebrine to cause circu lacontaining the cooling mediumand a re- It is furcher morejan object of 'the inof a dining car'withfla refrigerator high tion thereof through a piping system connecting all the auxiliar refrigerator boxes of the dining car with thebrine chamber of the main refrigerator box.

It is an important object of this invention to connect all of therefrigerator boxes of a dining car by means of a piping-system adaptedto besupplied with a cooling medium from a dining car supply tank orfrom an exterior source of'supplywhen the dining car is not in motionand the cooling medium in-the sup-ply tank is not'sufiicient to supplythe required amount of the cooling medium to the piping system.

Other and further important objects of this invention will be apparentfrom the disclosures in the specification and drawings. The invention(in a preferred form) is illustrated in the drawings and hereinaftermore fully described.

On the drawings- Figure 1 is a plan View .of the interior of theikitchenend of a dining car equipped with a refrigerator installation embodyingthe principles of this invention.

Figure 2 is an enlarged detail section taken on line 22 of-Figure 1.

Figure 31s a horizontal section of the various dining car refrigeratorboxes.

Figure 4 is a sectional view taken on line 4'-4 of Figure 3.

Figure 5 is an enlarged detail section taken on line 5-5101" Figurel-showing the roof of the dining car and the refrigerator high and lowsides in place.

v Figure 6 is a detaihelevation of the refrigerator high side and lowside unit-with the supporting-frame shown in section.

Figure 7 is an enlarged detail section taken on line 77 of Figure 1-.

As shown in the 'drawmgs The reference numerall indicates a dining carprovided with a top 2, which has an opening3 therein at one corner ofthe car.- The" dining car lis' divided in a dining room 4;, a pahtry 5,a kitchen section (land a passageway 7. The passageway 7 leads from oneentrance of the car between the kitchen section and one side wall ofthe-car to the inner entrance to the dining room. The dining room 4 isseparated from the passage 7 by side partitions 8spaced apart to affordan open doorway. A buffet or cabinet 9 is positioned transversel of thecar in front of the inner end wal 10 of the kitchen section. Atransverse wall' '11 separates the pantriy one end of the car 1.

The kitchen is equipped with a range 13 and with an um 14, which arepositioned longitudinally in the kitchen along the inner kitchen wall15. v Mounted 'in one'corner of the kitchen 6 is a main refrigerator box16 having an opening" 17 in the top wall thereof. The main refrigeratorbox 16 is provided with a front door 18 affording access to a mainrefrigerating chamber 19 for keeping meats and other products. Thechamber 19 is provided with a baffle 20 to the upper portion of which adrip pan 20 is connected. A drip plate 21 extends over the upper end ofthe drip pan 20*. A brine tank 22 is mounted in la chamber 23 of thebox, 16 and extends vertically at one side of the baflle 20 and acrossthe upper portion of the box 16, as shown in Figure 5. The top .of thebrine tank 22 is provided with an opening surrounded by a flange 24,which projects upwardly into the opening 17 of the box 16. The mainrefrigerator box 16 is provided with a projection 25, into which thebrine tank 22 projects. The box extension 25 abutsagainst theend wall 26of the car 1.

. Mounted 'in the ln't-chen against the outer longitudinal wall of thecar is an auxiliary refrigerator box '27 and a sink 28. A shelf 29 isprovided transversely of the kitchen on the wall 11. Stationed in thepantry 5 against the longitudinal inner wall thereof is a secondauxiliary refrigerator box 30. A shelf or table 31 is disposedtransversely of the antry on the wall 11. The fruit and.

'vegetale-refrigerator box 32 is located in the pant in the cornerformed by one of the partitions-8 and the outer car wall of the pantry.q The. entrance to the pantry is between the' cabinet 9 and therefrlgerator box 32.

v The refrigerator box 32 is provided with a door 33, which permitsaccess to a cooling chamber 34 for fruits and vegetables. A brine tank35 is mounted within the box 32 for the purpose of absorbing heat forcooling the chamber 34. If deslred, a coil may be substituted for thetank 35. A baflle 36 and a drippan 36 are provided in the chamber .34. Adri plate 37 projects'over the upper end oft e drip pan 36.

The refrigerator box 27 provided with I top doors 38 and front doors 39to afiord access to the interior of said box. Connected to the lower endof the main brine tank one end of a main brine supply pipe 40 whichprojects throu h the main refrigerator box 16 and throng the auxiliaryrefrigerator box 27 and then passes through the pantry and connects withthe return pipe 41.v The heat absorbing orcooling jackets 42 and 43 areeach connected with the main brine supply pipe 40 by means of aregulating valve 46. The auxiliary refrigerator box 30 is provided withhollow heat absorbing or cooling cylinders or jackets 47 and 48connected tovone another at their upper ends by an outlet or i returnpipe 49. Pipe coils may be used in place of the cylinders 47 and 48. Thecooling jackets 47 and 48 are each connected at their lower ends withare The feed pipe 51 has one end connected with the main pipe 40 andextends across the pantry below the shelf 31. and into the box 30 topermit the regulating valves 50 to be connected therewith. Connectedwith the;

pipe 49 is one end of a return pipe 52, which projects upwardly out ofthe box 30 and across the top of the pantry to connect up- I gulatingvalve 50. which connects with a brme feed pipe 51.

with the main return pipe 41. The aux-j iliary refrigerator box 30 isprovided with top doors 53 and front doors 54. Connected in the mainbrine supply pipe 40 at the'outside of the box 27 is a three wayconnector 55 to the middle arm ofwhich a short pipe length 56 isconnected. A shutoif valve 57 is provided in the pipe 56 and is adaptedto be connected with anoutside source of brine for charging the diningcar brine system when the dinin crating plant is outof commission. Athree way connector 58 is connected in the main return pipe 41. A shortpipe length-59 is connected with the middlearm of the con'-' nector 58and has a shut-off valve 60 attached thereto to permit a return pipe ofan outside refrigerating system to be connected with the return line ofthe dining car sys-.

tem.

car refrig- For cooling the cooling medium such as brine used in thedining car refrigerating system a portable type combination high sideand low side refrigerating plant unit is used, as illustrated in Figures5 and-6. The. .portable unit comprises a peripherally flanged cover orplate 61 adapted to close the opening 3 in the car roof 2. A ventilatmghood 62' is provided on the cover 61. I To lower the high side-low sideunit in place ari eye screw bolt 63 is secured to the cover.'

Attached to the bottom of the cover 61 is a supporting frame embracin along section 64 and'short section 65. e long fraine section 64 projectsinto the space above the main refrigerator box extension and between theend wall 26 of the car and the wall of the main. refrigerator box.Supported in the long frame section 64 is a driving motor 66 connectedto operate a compressor 67. Also mounted in the long frame section 64 isa condenser 68, one end of which is connected to a refrigerant tank 69,wliile ..to the brine in the brine tank 22. The out let endof theexpansion coil 72 is connected by. means of a pipe 73 with the inletpipe 74 of the compressor 67. The intake end of .the expansion coil 72is connected by a pipe 75 with the outlet pipe 76 of the refrigeranttank 69. An expansi n valve 77 is providedin the pipe 7 5. l

- The operation is as follows:

As shown in Figures 5 and 7, brine or any other. cooling medium isprovided in the tanks 22 and 35 and in the various pipes of the coolingipe system. With the refriger ator low side expansion coil 72 projectinginto' the upper end of the brine. tank 22 in the main refrigerator box16 the brine in the upper portion of said tank 22 is adapted to becooled by the refrigerant from the high side tank 69 flowing through theexpansion coil 72 when the motor 66 is in operation to operate thecompressor 67.

The refrigerant circulating through the expansioncoil is permitted'toexpand and draws the heat from the brine. The heated refrigerant leavesthe expansion coil 72by way of the'pipe 73 and enters the" compressor 67where it is 'compressedJ'The compressed refrigerant from the Icompressor flows through thepipe-70 intothejcond'enser 68 where itis-condensed {and allowed to enter the refrigerant tank 69' for in 'theaexpansionfcoil. 72.;5The Theated brine in the upper ortio'n' of; thebrine 22 isthus coole by the refrigerantfpassing through the expansioncoil 72. As the brine is cooled it moves'downwardl in the tank 22 andout throu h the main pipe 40 to enter d the lower end 0 thebrine tank 35in the fruit and vegetable refrigerator box 32. The cooled brine. in thetank 22 is adapted to serve as av stored cooling means adapted to coolthe system for a considerable period of time after the machine has beenstopped. The cold brine from the main pipe 40 also 'of-the main return vCold brine from t e; pipe 40 flows through circulates through thecooling cylinders 42 and 43.0f the auxiliary refrigerator box 27 whenthe valves 46 are open. From the cooling cylinders 42 and 43 the brinewhich gradually becomes heated while circulating rises in the pipe 45and flows back into the upper portion of the brine' tank 22 by way ipe41.

the pipe 51 into the cooling cylinders 47 and 48 of the auxiliaryrefrigerator box 30 when the valves 50- are open. From the cylinders 47and 48 the brine which graduv The main refrigerator box 16 located inthe kitchen is adapted to have meats orother food products stored inthechamber 19 thereof. The chamber 19 of the box 16 is rovided with abaflle 20, a drip pan20 an a drip plate 21 to provide a path whereby airis conducted against the surfaces of the brine tank 22 to produce acirculation for cooling the box 16. The plate 21 and the pan 20 preventmoisture from dripping on the foods. A similar baflie 36, drip pan 36and drip plate 37 are provided in the cooling chamber of the fruit andvegetable refrigerator box 32.

The auxiliary refrigerator box 27 is located in the kitchen'and isprovided with the cooling cylinder or jacket 42, whichmay be used forfish, while the cooling cylinder orjacket 43 is adapted to receive a canof milk. The middle cooling chamber in the box 27 is accessible throughthe front doors ion 39 and may be used for storing any kind offoodproducts. The auxiliary refrigerator box 30 is located in the pantry andthe cooling cylinder 47 thereof is adapted to re between the coolingcylinders47 and 48 is accessible through the front doors 54 and ceive acream can, while the cooling cylinder 9 1-48 is for ice cream." Thecooling chamber number of refrigerator boxes may-be co nnected in thesystem and connected by' s'uitable pipes with the cooling brine tank2251f preferred a cooling medium other than brine maybe used if desired.I

In case trouble is developed in the refrigerator high side and low sideunit so that the brine cannotbe cooled the dining car be-run on a sidetrack and connected wit an external refrigeratorbrinecharging station bymeans of suitableigipes which may be removably connected the valves 57and 60'to charge the ,dining car refri rator system with cold brinesufiicient to ast auxiliary'boxes with the brine tank, and a until thenext external charging station is reached'or until the refrigerator highside and low side unit -is repaired.

Attention is called to the "refrigerator high side and low side unitwhich may be removed through the roof of the dining car-- as a unit. byconnecting a hoisting cable with the screw eye. 63.

e are awarethat numerous details of construction maybe varied through awide range without departing from the principles of this invention, andwe therefore do'not purpose limiting the patent granted other- We claimas our invention:

1. A d1n1ng car refrigerator-system, comprising a main refrigeratorboxembodying wise than necessitated by the prior art.

a, food-receiving chamber, a brine tanktherein, a plurality of auxiliaryrefrigera torboxes, a pipe system connecting said refrigerator high sideand-low side unit asfrigerator'box and through the auxiliaryrefrigerator boxes to cool the same.

2. In a diningcar refrigerating system,

a main refrigerator box, a brine tank therein, a removable cover for anopening in the car roof above said box, and a refrigerator high side andlow side unit fixed to the underside of said cover and adapted,

( --when said cover is in position on said car 'roof, to be positionedwith its highside alongside saidbox and with its low side insaid boxbrine tank. a c

3. 'In a dining car refrigerating system,

a main refrigerator box, a brine tank therein,. a removable cover for anopening in the 'carroof above said box, a refrigerator high side and lowside unit fixed to the unsaid cover is in position on said car roof, tobe positioned with .its high side alongside said box and with its lowside in said 4 box brine tank, a plurality of auxiliary re- 4. Thecombination with a dining car, 'a 7 closed circulating system thereincontaining a heat exchange medium, means in the car for cooling saidmedium, and-means con- 7 nected with. said system whereby a charge ofthe heat exchange medium may be supplied thereto from an exteriorcharging plant when the cooling means in the car is out of commission.

5. The combination with a car,-of

a closed circulating system-therein embodying a 'plurality ofrefrigerator boxes, means in the dining car for cooling said system,.and means for connecting-an external cooling medium charging plant 'withsaid sys-" term to supply a cooling medium charge v thereto when saidcooling means is, out of commission.

. 6. The combination with a dining car, of a closed circulating'sy'steln embodying a.

plurality of refrigerators, a combination high side andlow siderefrigerator unit inthe dining car and connected with .one of said refrierators for cooling said'.system,

- and means connected with said system forsupplyinga-cold charge of thecooling mei dium. from an exterior charging plant when I the high sideand low side refrigerator unit- 80 7. The combination with a plurality"of is notin operating condition.

dining car refrigerators each embodying a food-receiving chamber, of abrine circulating pipe system connecting said refrigerators in tandem,andmeans in one of said refrigerators adapted to. cool thebrlneto causecirculation thereof through" the van- 4 ous refrigerators to cool thesame. H v In testimony whereof, we have hereunto subscribed our names inthe presence of two subscribing witnesses. derside of said cover andadapted, when WILLIAM WISHART. ALBERT H. MORRELL. Witnesses;

FRED E. PAESLER', JAMES M.

